Show Controls And Update Grids With Generated Content

[seanparsons]

Problem:
When the entries inside a grid are generated from something like a map expression, none of the grid handling works for when the elements are selected.

Fix:
Mostly this uses a function to look up the hierarchy for an uninherited grid layout system. As previously the assumption was that the direct parent of a grid item within our hierarchy would be the grid.

Video:
https://github.com/user-attachments/assets/609db057-30a5-47e8-bd15-decc71ec671b

Commit Details:

• Simplified isGridCell.
• Implemented findOriginalGrid utility function.
• Added update to layoutSystemForChildrenInherited to fillLayoutSystemForChildrenFromAncestors.
• useGridData now uses findOriginalGrid to look up the hierarchy to find the grid we're interested in.
• resizeGridStrategy now uses findOriginalGrid to find the correct element to update.
• DOM walker defaults layoutSystemForChildrenInherited to false.

Manual Tests:
I hereby swear that:

• I opened a hydrogen project and it loaded
• I could navigate to various routes in Play mode

[github-actions]

Try me

[relativeci]

#14847 Bundle Size — 57.98MiB (~+0.01%).

60fd5d2(current) vs 916e8b9 master#14846(baseline)

Warning

Bundle contains 70 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #14847	Baseline #14846
Initial JS	40.96MiB(~+0.01%)	40.96MiB
Initial CSS	0B	0B
Cache Invalidation	18%	17.88%
Chunks	20	20
Assets	22	22
Modules	4153	4153
Duplicate Modules	213	213
Duplicate Code	27.33%	27.33%
Packages	477	477
Duplicate Packages	70	70

Bundle size by type   2 changes 1 regression 1 improvement

	Current #14847	Baseline #14846
JS	57.97MiB (~+0.01%)	57.97MiB
HTML	7.37KiB (-0.25%)	7.39KiB

Bundle analysis report Branch fix/generated-grid-updates Project dashboard

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